Manifold bookbinder



Patented Aug. 18, 1931 UNITED STATES MANIFOLD nookimvnnn Application filed January 24, 1930. Serial m5. 423.159.

This invention relates to manifold books and more particularly to the binding therefor.

Manifold books have usually been bound with a hinge for the top cover on top of the book while the hinge for the bottom cover, if there was any, was at the bottom of the book. Vith the hinge at the bottom of the back bone of the book the top cover when folded beneath the book would project beyond the front end thereof a distance equal to the thickness of the book. It was to overcome this objectionable feature and to effect a saving in time and material that this invention was designed.

A primary object of the invention is to so bind a book of this character that much time and material will be saved in the manufacture and a degree of convenience provided not heretofore had.

In carrying out these objects, the invention is susceptible of a wide range of modification without departing from the spirit or sacrificing any of the advantages of the claimed invention; there being shown in the drawings for illustrative purposes a preferred and practical form, in which:

Figure 1 represents a perspective view of a portion of a book constructed in accordance with this invention with the top cover member shown partially open;

Fig. 2 is a top plan or end view of the closed book with parts broken out for convenience in illustration; and

Fig. 3 is an'end view with the top cover folded back under the book, and the intermediate portions of the strips shown detached from the back bone of the book to more clearly illustrate their structure.

The portion termed backbone of a book is the rear portion where the leaves are con- .nected and which is shown at 4 in the draw ings. V

The illustration which shows a preferred 45 embodiment of the invention comprises a manifold book 1 includingleaves 5 and cover members 2 and 3 connectedin a manner presently to be described, and having a back bone 4. The leaves 5 constituting the body 0 portion of the book are bound together at WALTER F. BAKER, or vnwronr NEWS; xii-ite s.

face of coVenmember Q adjacentits IBtr their rear edges forming'a back bone and to the rear edge of the beam cover member 3 by staples 6" in the mannerf-usual; with books of this type. f M

Two strips 7 and 8- of tough, strong, fiexible fabric areprovided and'one of them"( 7) is glued along one edge to theou-ter faceof the topor uppermost leaf 5:: adjacent-the back-bone 4 and along its other ed eis'gmed to=theinner face of the [cover member? adjacent i'tsrear end The other strip-" j'i's glued along one edge to the outer face of the bottom member 3'adj acent the 'baclr bone and along its other edge is glued-fto the outer m edge. The intermediate, portion 'of*-"s t p 7 between its attached edges is of'alength to span the width-of the backbone 'o'r'the space between leaf 5d 'and coverfl"when. the latter is folded back undercover 3*(se'e ""70 8). One-half of the intermediate portion-of strip 7, that is, the portion betweend't's con- "nected edges, is securech'preferably by gluing, to the back bone froni' a pointadj acent m the connection of said strip with theleaf 5a to a point midway of thewidthof the back bone, (see *Fig. 1). 'The; intermediate portion of strip 8', 'or 'the portion betweenl'its attached edges, is: ofalength corresponding to the widthof theiba'clrbone 'and"glued to said backbone-from the'point 'ofattachment of saidstrip to cover*3 tojthe point on the back bonelwherethe intermediate glued At their point of meeting the 'str'ipsjTa are placed in contact with each .other a'nd glued. together for' a" distance equal 'tofthe space between their points, of, meeting and the rear edge of top member 2 of the book. At this point the strips 7 and8 are separated and the top member 2 has its rear edge insertedbetween them, and the strips are glued, the one 8 to the outer face and the other 7 to the inner face, of said top member 2 as is shown m clearly in Fig. 1. It will thus be seen that $5 a hinge connection 9a is formed intermediate the width of the back bone 4 by the inner edges of the. glued together portions of the two strips 7 and 8 so that when the top memm ber 2 of the book is in closed position it will 100 lie flat down over the outer leaf 5a and the portion of strip 7 which is glued to the back bone of the book. When cover 2 is in open position as shown in Fig. 3 the hinge portion 9 will fold down over the portion of strip 8 which is glued to the back bone and permits the top cover member 2 to fold flat under the book overlying cover 3 so that the front edge of member 2 when so folded will be flush with the front edge of the bottom member 3 andthus permit the book to be laid flat on the desk without any projecting of the cover members in substantially the samemanner as if they were no top cover member.

It will thus be seen that the hinge of this book which connects the swingable cover member 2 is made midway the width ofthe backbone of the book half way between the top and bottom of the back bone but obviously it need not be positioned exactly half way but may be at any intermediate point. The construction of this connection of the covers results in the saving of considerable material, less than one-third thatrequired in binding the old ordinary flap back style of manifold.

Without further description it is thought that the features and advantages of the invention will be readily apparent to those skilled inthe art, and it will, of course, be understood that changes in the form, proportion and minor details of construction may be resorted to, without departing from the spirit of the invention or its scope as claimed.

I claim: In combination with a book body including leaves secured together at their rear edges to form a back bone; of covers for said body, flexible hinge strips, one strip secured along one edge to one side of said body adjacent said backbone and the other strip secured along one edge to the outer face of one cover member, said strips being glued to the back bone and meeting intermediate the width of, the back bone and secured together a distance equal to the distance from the meeting point of the stripsto the body face to which one strip is attached, said strips having their other edges straddling the rear edge of the other cover member and secured thereto.

- WALTER F. BAKER. 

